Kriegsmarine Coastal Forces - Gordon Williamson - Google Books

https://books.google.de/books?id=hSy1CwAAQBAJ&pg=

Although often overlooked in favour of the U-boats or battleships, the vast majority of the Kriegsmarine was formed of the smaller vessels of the coastal forces. These ships and boats, which included minesweepers, torpedo boats, patrol boats, and blockade…